Which state has a coastline on the Atlantic Ocean?

North Carolina has a coastline on the Atlantic Ocean, making it the correct answer. The state features a significant stretch of coastline that includes popular tourist destinations such as the Outer Banks and Cape Hatteras National Seashore. This access to the Atlantic Ocean allows for a variety of economic activities, including fishing, shipping, and tourism, and contributes to the state's geography and climate.

In contrast, Wyoming, Idaho, and South Dakota are all landlocked states located in the interior of the United States. They do not have any coastlines along the Atlantic Ocean or any ocean at all, which is a key factor to consider when determining which states have coastal access in the context of this question.